Papers and Notes on the Genesis and Matrix of the Diamond (Classic Reprint)

Papers and Notes on the Genesis and Matrix of the Diamond (Classic Reprint) PDF

Author: Henry Carvill Lewis

Publisher: Forgotten Books

Published: 2016-09-09

Total Pages: 130

ISBN-13: 9781333540289

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Excerpt from Papers and Notes on the Genesis and Matrix of the Diamond Several months elapsed, owing to various circum stances, before Mrs. Lewis could place the late Professor's manuscripts and the other materials in my hands. In the interval Sir J. B. Stone, m.p., when I was a guest at Erdington Grange, his pleasant home near Sutton Cold. Field, showed me a collection of specimens which he had obtained during a recent visit to the Kimberley mines. Among these were two lumps of the diamond-bearing rock, each as large as three or four ordinary cabinet specimens, and in a much better state of preservation than any which I had previously seen. One of these he kindly gave to me, asking me to examine its structure, and allowing me to make use of the other materials in his possession. Some microscopic sections were prepared from this specimen, and, in addition to others already in my collection, the gift of Professor Boyd Dawkins, I had the advantage of studying one or two small but well-preserved pieces of the rock, which had been presented to Miss C. A. Raisin by C. J. Alford, Esq., as well as others kindly-lent to me by the late Professor A. H. Green.' The results of these studies were published in the Geological for 1895 (pp. 492 - 502) in a paper jointly written by Sir J. B. Stone, Miss C. A. Raisin. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

The Book of R

The Book of R PDF

Author: Tilman M. Davies

Publisher: No Starch Press

Published: 2016-07-16

Total Pages: 833

ISBN-13: 1593276516

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The Book of R is a comprehensive, beginner-friendly guide to R, the world’s most popular programming language for statistical analysis. Even if you have no programming experience and little more than a grounding in the basics of mathematics, you’ll find everything you need to begin using R effectively for statistical analysis. You’ll start with the basics, like how to handle data and write simple programs, before moving on to more advanced topics, like producing statistical summaries of your data and performing statistical tests and modeling. You’ll even learn how to create impressive data visualizations with R’s basic graphics tools and contributed packages, like ggplot2 and ggvis, as well as interactive 3D visualizations using the rgl package. Dozens of hands-on exercises (with downloadable solutions) take you from theory to practice, as you learn: –The fundamentals of programming in R, including how to write data frames, create functions, and use variables, statements, and loops –Statistical concepts like exploratory data analysis, probabilities, hypothesis tests, and regression modeling, and how to execute them in R –How to access R’s thousands of functions, libraries, and data sets –How to draw valid and useful conclusions from your data –How to create publication-quality graphics of your results Combining detailed explanations with real-world examples and exercises, this book will provide you with a solid understanding of both statistics and the depth of R’s functionality. Make The Book of R your doorway into the growing world of data analysis.

Introduction to Information Retrieval

Introduction to Information Retrieval PDF

Author: Christopher D. Manning

Publisher: Cambridge University Press

Published: 2008-07-07

Total Pages:

ISBN-13: 1139472100

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Class-tested and coherent, this textbook teaches classical and web information retrieval, including web search and the related areas of text classification and text clustering from basic concepts. It gives an up-to-date treatment of all aspects of the design and implementation of systems for gathering, indexing, and searching documents; methods for evaluating systems; and an introduction to the use of machine learning methods on text collections. All the important ideas are explained using examples and figures, making it perfect for introductory courses in information retrieval for advanced undergraduates and graduate students in computer science. Based on feedback from extensive classroom experience, the book has been carefully structured in order to make teaching more natural and effective. Slides and additional exercises (with solutions for lecturers) are also available through the book's supporting website to help course instructors prepare their lectures.